Can the NVIDIA RTX 3090 run Gemma 3 27B?

Yes
QuantQ4_K_MGood, most popular
Memory21.4 GBof 24 GB
Speed~34tokens/s

Yes. The NVIDIA RTX 3090 can run Gemma 3 27B fully in VRAM at Q4_K_M (good, most popular), using about 21.4 GB of the 24 GB available, at roughly 34 tokens/second.

Try other context lengths in the calculator →

Memory needed by quantization

At 8,192 tokens of context.

QuantQualityMemoryFits?Speed
FP16Full quality59.6 GBToo big—
Q8_0Near-lossless33.9 GBToo big—
Q6_KExcellent27.2 GBToo big—
Q5_K_MVery good24.2 GBToo big—
Q4_K_MGood, most popular21.4 GBFits~34 tok/s
Q3_K_MNoticeably degraded18.2 GBFits~42 tok/s
Q2_KHeavily degraded15 GBFits~55 tok/s

How to run Gemma 3 27B on the NVIDIA RTX 3090

With Ollama installed, one command downloads and starts it:

ollama run gemma3:27b

Ollama's default download is Q4_K_M (about 21.4 GB here). That is also the best quant that fits.

GPUs that run Gemma 3 27B comfortably

Models that run well on the NVIDIA RTX 3090

Run it in the cloud

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